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PTFE tube inserts

If direct desorption in an empty tube could cause irreversible contamination of that tube, its best to place the sample in a disposable tube liner. Markes’ direct desorption liners are made from PTFE and designed for use with stainless steel tubes. They protect the tube walls and simplify sample weighing. Two types of liners are available:

  • Snug-fit liners, which should be used for most powdered/granular samples.

  • Loose-fit liners, suitable for semi-solid samples​ (which should be smeared around the inside of the liner).

Hints and tips

  • In all cases, it is critical that the sample does not plug the liner and that carrier gas can continue to flow through unimpeded.

  • Loose-fit liners can also be inserted into tubes packed with a small bed (approx. 1 cm) of sorbent, preventing high-boiling debris from the sample matrix migrating into the flow path.

 

 


SKUDescription 
C-PI010 Liner, PTFE, snug fit, pk 10 Call us for pricing or contact your local distributor
C-PL010 Liner, PTFE, loose fit, pk 10 Call us for pricing or contact your local distributor
C-PI100 Liner, PTFE, snug fit, pk 100 Call us for pricing or contact your local distributor
C-PL100 Liner, PTFE, loose fit, pk 100 Call us for pricing or contact your local distributor

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UK
UK
Markes International Ltd
Gwaun Elai Medi-Science Campus
Llantrisant
RCT, CF72 8XL
UK
Tel: +44 (0)1443 230935
Germany
Germany
Markes International GmbH
Bieberer Straße 1-7
63065 Offenbach am Main
Germany
 
Tel: +49 (0)69 6681089-10
USA (West)
USA
Markes International, Inc.
2355 Gold Meadow Way
Gold River, Sacramento
California 95670
USA
Tel: +1 866-483-5684 (toll-free)
China
China
Markes Instruments (Shanghai) Co., Ltd
No. 1 Building, No. 7 Guiqing Road
Xuhui District
Shanghai 200233
P.R. China
Tel: +86 21 5465 1216
Part of Schauenburg International
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